image pipeline
An image pipeline is the automatic process that takes an uploaded image and gets it ready for the web: converting the format, generating several sizes, compressing it, and often pushing it to a CDN, so every visitor gets the smallest correct image for their screen. WordPress does a basic version of this out of the box, creating its registered sizes on upload. A modern pipeline goes further with WebP and AVIF conversion, responsive srcset sizes so the browser picks the right resolution, and lazy loading for off-screen images. When this is neglected it’s usually the single biggest cause of a heavy page; one uncompressed 4 MB hero image on a phone can sink your loading score all by itself.
Also known as: image optimization, WordPress image pipeline, image processing, image optimization pipeline
Where this term comes up
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WordPress speed optimization
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The WordPress site audit most agencies skip in 2026
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Lighthouse scores vs real WordPress performance: what actually matters
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OfficeCommunity.com: Corel WordPerfect Office Suite community hub, 2000
Monthly-updated resource hub for Corel WordPerfect Office Suite users, one of five Corel community properties maintained by the in-house web team.
Glossary entries are a starting point. The real question is usually what to do about the thing once you understand it.
When you are ready to go further, the related guides take this from definition to fix.
And if you would rather just ask a person, I read everything that comes to christopher@thisismyurl.com.
I have been working in WordPress since 2007, so most of these terms come with a story.
Still mapping the basics? The full glossary is here whenever you need it.